Coal screening device and using method thereof
A screening device and coal technology, applied in chemical instruments and methods, sieves, solid separation, etc., can solve the problems of easy clogging of sieve holes, wear of hammer heads, and large maintenance, so as to improve screening efficiency and increase coal production. The effect of low circulation and manufacturing cost
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[0024] Example 1
[0025] Such as figure 1 , 2 As shown in, 3, and 4, the coal screening device of the present invention includes a casing 1. One side of the top of the casing is provided with a feed port 2, and the bottom is provided with small and large particle discharge ports 9, 10; There is a stepped sieve plate 12 extending obliquely from the side of the feed port 2 to the direction of the large particle discharge port 10. The stepped sieve plate 12 is longitudinally spliced into a sieve plate through multiple sieve bars, and is composed of a stepped vertical surface and The step planes are combined and connected to form an inclined step shape; the lower side of the feed port 2 is provided with a guide baffle 3, which extends to the first-level feed buffer rotating screen roller 4 and the second-level feed buffer rotation On the upper side of the sieve roller 6, the uppermost end of the stepped sieve plate 12 is connected to the lower side of the secondary feed buffer rot...
Example Embodiment
[0033] Example 2
[0034] The inventive device of this embodiment includes a housing 1. One side of the top of the housing 1 is provided with a feed port 2, and the bottom is provided with small and large particle discharge ports 9, 10; the housing 1 is provided with a feed port 2The stepped sieve plate 12 extending obliquely from the side of the large particle discharge port 10; the stepped sieve plate 12 is longitudinally spliced into a sieve plate by a plurality of sieve bars side by side, and is connected by a combination of the stepped elevation and the stepped plane to form an inclined step Shape; the lower side of the inlet 2 is provided with a guide baffle 3, the baffle 3 extends to the upper side of the primary feed buffer rotating screen roller 4 and the secondary feed buffer rotating screen roller 6, step The uppermost end of the sieve plate 12 is connected to the lower side of the secondary feed buffer rotating sieve roller 6 for receiving the coal that is buffered ...
Example Embodiment
[0038] Example 3
[0039] The inventive device of this embodiment includes a housing 1. One side of the top of the housing 1 is provided with a feed port 2, and the bottom is provided with small and large particle discharge ports 9, 10; the housing 1 is provided with a feed port 2The stepped sieve plate 12 extending obliquely from the side of the large particle discharge port 10; the stepped sieve plate 12 is longitudinally spliced into a sieve plate by a plurality of sieve bars side by side, and is connected by a combination of the stepped elevation and the stepped plane to form an inclined step Shape; the lower side of the inlet 2 is provided with a guide baffle 3, the baffle 3 extends to the upper side of the primary feed buffer rotating screen roller 4 and the secondary feed buffer rotating screen roller 6, step The uppermost end of the sieve plate 12 is connected to the lower side of the secondary feed buffer rotating sieve roller 6 for receiving the coal that is buffered ...
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